---
product_id: 115083641
title: "Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products"
brand: "prime-line"
price: "R1523"
currency: ZAR
in_stock: true
reviews_count: 9
url: https://www.desertcart.co.za/products/115083641-prime-line-products-u-9970-jimmy-resistant-deadlock-diecast-brass
store_origin: ZA
region: South Africa
---

# Jimmy-resistant design Includes 2 unique keys Surface-mounted, easy install Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products

**Brand:** prime-line
**Price:** R1523
**Availability:** ✅ In Stock

## Summary

> 🔐 Lock in peace of mind with style and strength!

## Quick Answers

- **What is this?** Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products by prime-line
- **How much does it cost?** R1523 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/115083641-prime-line-products-u-9970-jimmy-resistant-deadlock-diecast-brass)

## Best For

- prime-line enthusiasts

## Why This Product

- Trusted prime-line brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sleek Brass Finish:** Polished diecast brass color adds a premium, professional look to your home’s entryway.
- • **Complete Locking Kit:** Includes angled strike, rim cylinder, tamper-resistant shutter guard, and two differently keyed keys for ultimate control.
- • **Unbreakable Security:** Prohibit forced entry with a jimmy-resistant deadlock that secures your door frame like a fortress.
- • **Precision Fit Guarantee:** Tailpiece can be customized on-site for perfect lock performance—no compromises on security or ease.
- • **DIY-Friendly Installation:** Quick surface-mount setup on wood or metal doors (1-3/8” to 2-3/8” thick) with clear instructions—no pro needed.

## Overview

The Prime-Line U 9970 Deadlock is a durable, jimmy-resistant single-cylinder lock designed for enhanced home security. Featuring a polished brass diecast body, it fits wood or metal doors between 1-3/8” and 2-3/8” thick. The package includes an angled strike, rim cylinder, tamper-resistant shutter guard, and two uniquely keyed keys. Easy to install with surface mounting and customizable tailpiece length, this lock offers professional-grade protection with a sleek finish.

## Description

Free delivery and returns on all eligible orders. Shop Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products.

Review: easy to fit for a person who has basic diy - extra lock for back door, easy to fit for a person who has basic diy skills
Review: Five Stars - Great replacement

## Features

- PROHIBIT FORCED ENTRY – Use our strong, durable deadlock, featuring a jimmy-resistant design, to prohibit forced entry by the spreading of door frames. It provides added security to your home by securing your door to its jamb and includes a tamper-resistant shutter guard to deter unwanted entry..Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit.
- EASY INSTALLATION – Installation is quick and easy, with instructions included. The deadlock is a surface-mounted, cross-bolt locking device which can be mounted to 1-3/8” to 2-3/8” thick, wood or metal doors. It can be installed inside or outside, on left- or right-hinged doors.
- INCLUDES - This door lock includes an angled strike, a rim cylinder, two keys (keyed differently), a cylinder trim ring, fasteners, a mounting plate, instructions and a tamper-resistant shutter guard. This lock requires a 1-1/4” hole and uses Segal keyway.
- INSTALLATION TIP - Snap-off or cut-off end sections of tailpiece as needed, if it is too long for your door. Having the tailpiece too long can negatively affect the performance of the lock. Use pliers to snap-off, a hacksaw or small disk to cut-off, and a file to remove sharp edges and burrs..For all dimensional information please refer to the line art and compare to your needs before purchasing
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000BDB4Q0 |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 197,253 in DIY & Tools ( See Top 100 in DIY & Tools ) 150 in Dead Bolts 278 in Lock Cylinders |
| Colour | Brass |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,400) |
| Date First Available | 13 Jun. 2023 |
| Finish | Polished |
| Included Components | Angled strike, rim cylinder, two keys (with different shape key but also available with equal key), cylindrical trim ring, fasteners, mounting plate, easy to install instructions, and tamper-resistant shutter guard. |
| Item Package Quantity | 1 |
| Item Weight | 454 g |
| Item model number | U 9970 |
| Manufacturer | Prime-Line Products (Home Improvement) |
| Material | Diecast |
| Number of Pieces | 1 |
| Part Number | U 9970 |
| Product Dimensions | 2.54 x 10.95 x 7.29 cm; 453.59 g |
| Shape | D-Shape |
| Size | 1 Pack |
| Special Features | Durable |
| Style | Single Cylinder |

## Product Details

- **Brand:** Prime-Line
- **Item dimensions L x W x H:** 25 x 109 x 73 millimetres
- **Lock type:** Key Lock
- **Material:** Diecast
- **Special feature:** Durable

## Images

![Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products - Image 1](https://m.media-amazon.com/images/I/41+mAgB9oCL.jpg)
![Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products - Image 2](https://m.media-amazon.com/images/I/4161S+sD44L.jpg)
![Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products - Image 3](https://m.media-amazon.com/images/I/51XDUmZ-jgL.jpg)
![Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products - Image 4](https://m.media-amazon.com/images/I/51nF3u48ZqL.jpg)
![Prime-Line Products U 9970 Jimmy-Resistant Deadlock, Diecast, Brass Color, Angle Strike, Single Cylinder by Prime-Line Products - Image 5](https://m.media-amazon.com/images/I/61zs-TCdxUL.jpg)

## Questions & Answers

**Q: What is the diameter of the hole I need to drill in the door to mount this?**
A: the instructions indicate that you are to drill an inch and one quarter hole in the door.

**Q: Does one need to install the outside key entry component, or can it be used as an inside only night latch?**
A: Yes, instructions are provided for both configurations, inside security latch, or deadbolt style operation.  I used both configurations. Deadbolt for front door, and security latch for inside door to garage.  If using as high security use be sure to use long screws, ones included not long enough to reach internal wall studs for added strength.  Door frame itself not strong enough for high security.

**Q: Can this lock be used on either a left or a right hinged door?**
A: Yes.  I've mounted it both ways.

**Q: What the is minimum thickness of door this lock will work for?**
A: The door thickness required is 1-3/8" to 1-3/4".  So the minimum is 1-3/8".Thank you for your interest in our product.A. JonesTime Warp Toys and More

## Customer Reviews

### ⭐⭐⭐⭐⭐ easy to fit for a person who has basic diy
*by M***R on 24 October 2017*

extra lock for back door, easy to fit for a person who has basic diy skills

### ⭐⭐⭐⭐⭐ Five Stars
*by M***K on 26 February 2017*

Great replacement

### ⭐⭐⭐⭐ easy installation
*by B***L on 28 April 2024*

We've had an almost identical one on our door since we moved in 40 years ago, sadly it broke, but this was 95% IDENTICAL to the original, so we swapped them over and reused our barral so no new keys were needed. Possibly not quite as sturdy as the original, but very happy with this replacement.

## Frequently Bought Together

- Prime-Line U 9970 Deadlock – Jimmy-Resistant Design Prohibits Forced Entry by Spreading of Door Frames – Single Cylinder Diecast Metal Lock With a Brass Finish and Angle Strike (Single Pack)
- National Hardware N183-590 V807 Door Chain in Brass,1/2" x 6"
- Prime-Line U 10378 Bright Brass, Steel Cylinder Guide (Single Pack)

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**Shop now:** [https://www.desertcart.co.za/products/115083641-prime-line-products-u-9970-jimmy-resistant-deadlock-diecast-brass](https://www.desertcart.co.za/products/115083641-prime-line-products-u-9970-jimmy-resistant-deadlock-diecast-brass)

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*Product available on Desertcart South Africa*
*Store origin: ZA*
*Last updated: 2026-03-14*